Differences in the pattern and timing of recurrence in patients after upfront or post-neoadjuvant pancreatectomy for pancreatic ductal adenocarcinoma. (March 2018) - Groot, V.P.; Blair, A.B.; Gemenetzis, G.; Burkhart, R.A.; Fishman, E.K.; Hruban, R.H.; Cameron, J.L.; Weiss, M.J.; Wolfgang, C.L.; He, J.